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Gastrointest Endosc. 2005 Oct;62(4):538-44.

Capsule endoscopy findings in patients with established and suspected small-bowel Crohn's disease: correlation with radiologic, endoscopic, and histologic findings.

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Division of Gastroenterology, Department of Radiology, St. Michael's Hospital, Toronto, Ontario, Canada.



Little is known about the accuracy of capsule endoscopy (CE) in evaluation of small-bowel Crohn's disease.


Symptomatic eligible patients had ileocolonoscopy and biopsies from the terminal ileum, followed by small-bowel radiologic studies before CE. Endoscopic, radiologic, CE, and histologic findings were compared. Histology (terminal ileum biopsy specimens or a tissue sample after small-bowel resection) served as a criterion standard.


Fifty-four patients were enrolled; 15 of the 54 patients were excluded from data analysis (critical small-bowel strictures, 14, identified on radiology; incomplete CE, 1). Data were analyzed for 39 patients. All patients had histologic evaluation of the small bowel. Final diagnosis of active small-intestine Crohn's disease was made in 29/39 patients (74.4%). When calculated, CE yielded a sensitivity and a specificity of 89.6% and 100.0%, respectively, and a positive predictive value and a negative predictive value of 100.0% and 76.9%, respectively, whereas small-bowel series were 27.6%/100.0% and 100.0%/32.3%.


CE is more accurate in detecting small-bowel inflammatory changes suggestive of Crohn's disease than conventional studies. CE, combined with ileocolonoscopy, may be proposed as a first-line investigation of the small intestine in cases of uncomplicated known or suspected Crohn's disease.

[Indexed for MEDLINE]

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